Elevator-gate-control device



F. L. OHLER.

ELEVATOR GATE CONTROL DEVICE.

APPLICATION FILED AUG.22, l9l7 1,412,3 3, Patented Apr. 11, 1922.

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F. L. OHLE R.

ELEVATOR GATE CONTROL DEVICE.

I APPLICATION FILED- AUG-2 2, 1917. Patented Apr 11 I 3 SHEETSSHEET 2.

, H aaFAwkL F. L. OHLER. ELEVATOR GATE CONTROL DEVICE.

. I APPLICATION FILED AUG-22,1917- 1,412,368. I Patented Apr. 11, 1922.

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FRANK L OHLER, OF TOLEDO, OHIO, ASSIGNOR TO THE HAUGI-ITON ELEVATOR & MACHINE 00., OFTOLEDO, OHIO; A CORPORATION OF OHIO.

- EIiEVATOR-GATE-CONTR-OL DEVICE.

Application To aZZ whom it may concern Be it known that T, FRANK L. Grimm, of l 'oledo Lucas County, Ohio, a citizen of the United States of America, have invented new anduseitul Elevator-Gate-Control Devices of which the following is a specitira tion.

This invention relates to the remote control or actuation of tratlic closures.

This invention has utility when adapted to elevators. especially for the opening and closing of doors or gates the cars as well as the shaft doors.

Referring to the drawings:

Fig. i is a tr gnientary side elevation of an embodiment of the invention in an ele vator;

Fig. 2 is a fragmentary perspective view of the cable diagram of the device of Fig. 1;

Fig. 3 is a plan view oi the elevator shaft of Fig. l, with parts broken away; 1

Fig. of the counterweight controlling cam is a view looking down thereon, with parts broken away;

Fig. 5 is a section on the line N -v, Fig. t, looking in the direction of the arrow, and Fig. 6 is a wiring diagram of the gate controller.

The building or structure may be provided with a plurality of floors 1 as landings between which an elevator car may travel. These floors havin openings therethrough may provide the elevator shaft sun mounted by the deck for the actuating machinery, as the electric motor driven hoisting machine 3 for eii'ecting ravel of the elevator car t up and down in the elevator shaft or well.

The open sides or" the car l are ways'which may be closed by the gravity gates 5, 6. From the gate 5, as a control device there for operable to effect lifting and lowering of said gate, extending upward there'troim' is the flexible inea s or cable a passing about the guide pulleys 8, 9, in the adjustable brackets 10, thence downward in the elevator shaft or Well past the car i to form a bight about the piilley .11, with the end remote from the gate 5 connectedin its upward reach to the bottom of the car 4:. This bight of the line or cable 7 about the pulley Specification of Letters Patent.

Patented Apr. 11,1922.

traveling counterweighttraveling gate 5.

The gate 6 has its control line or cable as flexible means 13 BXJGIlCl upward about the guide pulleys 1e, 15, adjacent the top of the elevator shaft, thence downward therein to form a bight about the counterweight connected pulley 1'8, with the upward reach of the line 13 therefrom, also connected to the car 4. l i ith the counterweight 12 poised so that in car travel the gates 5, 6, rest on the car there is a running connection of the car gates with the counterweight 12 independently of any travel of the counterweight 12.

For effecting the gateactuation, the countcrweight 12 may be of a mass normally to open or hit the connected gate or gates, and thereby the gates are controlled by shifting the counterweight. Accordingly on the car at there may be protruding from a housing, a controller handle 17 for the motor 18 on the decl: 2 serving to drive the gate machine 19 in either of two directions. Shifting oi? the controller 17 to the right, say for opening a gate, by lowering the counterweight 12, brings the controller 1'? to contact 32 connected by line 33 extending to coil 34, thence by line 35 to supply line 36 thereby throwing switch Supply line 38 extends direct to field windings 39 of the motor 18. The throwing ot' the switch 37 connects line 36 by way oi? line so to the windings and supply line e1 by way or" line 42 to these for the relatively windings 39, hereby coin leting the three phases for operating the motor 18 in one direction. Shifting of the controller 17 in the opposite direction to contact connects supply line id from the line 38 to line 15 for energizing coil 16 thereby throwing switch 4- and through mechanical interlock 4. 8 insuring a throwing out of the switch 37. This connects the supply lines for an opposite direction for travel oi the motor 18. say tor lifting the counterweight 12 and thereby closing the gates. 'This gate machine 19, stationary as to the elevator shaft, through speed reduction may rotate the shaft 20 having thereon the adjustable wheel cam 21 of initiation. quicl: travel, with a slow down for stopping. The adjustment of the cam 21 is effected as to its pick-up andslow-down throw by the position of the terminal rolls in the radial mounting slots of the plate (Fig. 5). This travel rate holds not only in gate opening, but also in gate closing. Vhen the car gate'or gates are closed, the cam 21 normally carries one wrap of the flexible means or cable 22. T0 open simultaneously the connected gates, shifting of the controller 17 causes the gate machine 19 to unwind the wrap oi the line or cable 22 about the cam 21, thus allowing the gate mastering counterweight 12 to settle as to the car 4:, as the cable 22 extending down the elevator shaft passes about the counterweight carried pulley 23 as a bight in its extent down and up the shaft, the remote end being anchored to the deck 2. As the counterweight 12 settles down, permitted by the lowering of the pulley 23, the pulleys 11, 16, also going down lift the gates 5, 6, through the lines 7, 13. There is accordingly efi'ected simultaneous actuation of the gates 5, (3. The gate 6 is provided with the guide roller 24 working in the guide way 25. As the gate 6 starts upward, this way 25, through the roller 24, thrusts the gate 6 outward away from the car 4:, so that the projection 26 carried by the gate 6, in this initial upward travel of the gate 6 in the guide way may engage the ledge 27 of the well door or shaft gate 28, thereby in the ascent of the gate 6 also opening the gate 28 and maintaining such gate open. The gate 28 may have the flexible connection or cable 29 extending over the guide pulley 30 to the counterweight 31. The gate 28, although connected to the counterweight 31, is normally closed, as the weight of this gate is such as to overcome the counterweight. V The multiple gate control, as well as for single car gate control, as disclosed herein, is of simple form for installation with. minimum of upkeep attention. WVeather conditions or. use tend to effect the working lengths of operating lines or cables, and for niceties in adjustment of doors toropening and closing conditions with absence of slack, automatic provision is made herein by approximating the lengthy of the actuation cable or line 22 as equal to the gate line '7 or 13. WVith each cable of same length and kind and all under the common load of the counterweight 12, there is no slack, and with the machine adjusted on installation to bring the gates to the proper closed position, such is maintained even under varying cable lengths, for the variation of one is present in the other for neutralizing the stretch or shrink. tions may be used in working out the common lengths for the actuation cables. The

running lines as to the mastercounterweight 12 accordingly permit-s this counterweight .to efiect automatic maintenance-adjustment, but there is the reserve for gate actuation at Bracket adjustments or rigid sec any floor or landing always simply available. T he gate opening actuation by the counterweight 12 is more of a releasing action by the gate machine 19 than any paying out drive. The load 011 the gate machine is for gate closing, in the connection up with such gate or number of gates as may be desired.

hat is claimed and it is desired to secure by Letters Patent is:

l. A traveling car, a gate carried by the 3. A traveling elevator car, a gate mount-- ed on the car, a counterweight normally actuating the gate, a cable extending between the gate and car and having a bight in which the counterweight is disposed, and means for V rout-rolling the counterweight.

4. A traveling elevator car, a gate traveli ing with the car, and means :for actuating the gate including a counterweight, a running cable connected to the gate and coacting with the counterweight, and a counterweight shifting cable. 7

5. A traveling elevator car, a gate traveling with the car, flexible means extending upward from the gate and then downward to come up to the car including a. bight, and a counterweight disposed in said bight.

6. A traveling elevator car, a gate traveling with the car, a guide stationary as to the car, connecting means between the gate and car including flexible means extending about the stationary guide, said flexible means having a downwardly extending bight, a counterweight disposed in said bight, and means for shifting the counterweight thereby to control the gate.

7. A gate, a counterweight therefor, first and second lines having bights in which the counterweight is disposed, the first line, being connected to the gate, and means for adjust-ing the second line to effect shifting of the counterweight and thereby through the first line operating the gate.

8. A gate, a counterweight therefor, a stationary guide, flexible means extending from the gate upwardly about said guide and pro vided with a downwardly extending b-ight in which the counterweight is disposed, and means operable independently of car travel for-shifting the counterweight thereby to control the gate.

9. A gate, a normally gate actuating counterweight for the gate, an elevator car having guide means providing a car in which the gate is disposed, and flexible means between the gate and car including a downwardly extending bight in which the counterweight is disposed.

10. A gate, a normally gate actuating counterweight for the gate, an elevator car having guide means providing a way in which the gate is disposed, flexible means between the gate and car including a downwardly extending bight in which the counterweight is disposed, and controllable means for rendering the counterweight ineffective embodying a cam.

11. A traveling elevator car, a gate traveling with the car, a stationary gate machine for actuating the car gate, first flexible means extending from the machine, and second flexible means extending from the gate for coaction with the first flexible means in effecting gate control, said flexible means be-.

ing of approximately equal length, whereby length variation of one thereof is neutralized by the other in automatically maintaining the gate positions constant.

12. A traveling elevator car, a gate traveling with the car, a gate actuating machine as to which the car is movable, first and second flexible means extending respectively from the machine and gate and of approximately equal length for neutralizing length variations to preclude affecting gate positions, each of said flexible means being pro vided with a bight, and a counterweight disposed therein.

13. A plurality of gates, an elevator car having guide means providing ways for the gates, flexible means connecting the gates to the car including a downwardly extending bight for each gate, and a counterweight disposed in the bights.

14. A plurality of gates, a traveling eleva tor car on which the closed gates may rest, flexible means extending from the gates to the car including a downwardly extending bight, a counterweight disposed in the bight, and means as to which the car is movable for shifting the counterweight for simultaneously controlling the plurality of gates.

15. A gravity elevator gate, and a control device therefor including a normally gate opening counterweight, and a counterweight loaded line running as to the counterweight in car travel and extending from the gate to the car.

16. An elevator shaft, a gate therefor, a counterweight for actuating the gate, a counterweight loaded line running as to said counterweight in car travel and extending from the gate to the car, and means for con trolling the counterweight.

17. An elevator shaft, a gate therefor, a counterweight for the gate, an actuating device for the gate including a normally gate operating counterweight, a counterweight loaded line running as to said counterweight in car travel and extending from the gate to the car, and means for controlling the counterweight.

18. A pair of gates, independent counterweights therefor, a controller for one of the counterweights for shifting one gate, and interengaging means from the one gate effecting shifting of the other gate.

In testimony whereof I aflix my signature.

FRANK L. OHLER.

Certificate of Correction.

It is hereby certified that in Letters Patent No. 1,412,368, granted April 11,

1922, upon the application of Frank L. Ohler, of Toledo, Ohio, for an improvement in EleVator-Gate-Control Devices, an error appears in the printed specification requiring correction as follows: Page 3, line 2, claim 9, for the Word car read way; and that the said Letters Patent should be read With this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 2d day of May, A. D., 1922.

[SEAL] KARL FENNING,

Acting Commissioner of Patents. 

